Light-reflector.



0. S. STROM.

LIGHT REFLECTOR.

APPLICATION FILED SEPT. 27. 1915.

1,20Q.,398. I Patented Oct. 3,1916.

02am? JZmm. 5 4%? UNITED STATES PATENT OFFICE czar s. smell, or LOSANGELES, carrronma LIGHT-REFLECTOR.

Specification of Letters Patent.

Application filed September 27,1915. Serial No. 52,778.

. To all whom it may concern Be it known that I, OLAF S. STROM, acitizen of the United States, residing at, Los

An embodiment of my invention is illustrated in. the accompanyingdrawing, in

which! Figure l is a vertical section through a reflector with the lampin elevation, and Fig. 2 is a plan view.

Referring more specifically to the drawing, 3 indicates a fixturesupported by a link chain 4: and having a lamp 5 secured thereto.Supported from .the fixture 3 is my improved reflector 6. The fixturecomprises a lamp socket 7 to which is secured a canopy 8 of bell shape,and extending downwardly. The particular construction of the fixture isnot a feature of my invention, and any,"

type of fixture may be used to which my improved reflector may beattached.

Secured adjacent the mouth of the canopy 8 are wires '1' rods 9 havingflattened ends and bent out ardly so that the ends may be secured to thereflector. Both ends of rods 9 are flattened and rivets, screws, or anyother convenient fastening means may be used for securing the .rods tothecanopy and the reflector. It is preferable to use rods or wires inorder that there may be very little obstruction light upward. Thereflector 6 is shown as comprised of two reflecting surfaces 10 and 11of concave form, diverging from the center outward toward the,peripheral edge and having an encompassing annular member 12 to whichthe outeredges of the reflecting walls are connected. "Reflecting walls10 and 11 are shown as intersectingadjacent the center and provided withan aperture 13 in which to the passage of the c the bulb of the lamp 5is adapted to be disposed. A glass bowl 14 is shown connected to .theannular member 12. I do not wish, however, to limit myself to the use ofa glass bowl or the use of any bowl. The bowl 14 is preferablytransparent so that it will permit the rays of light to pass downwardly.

The reflector 6 should be so disposed with respect to the lamp 5 thatthe center of the filament 15 will ,be in the plane of the center of theapertures 13, thereby permitting some of the rays oflight to passdirectly upward without engaging the reflecting surface 10 Other of therays will pass outwardly engaging the reflecting surface 10 andupwardlyagainst the ceiling. Indirect lighting of the room is thereby produced.portion of the rays from the lamp 5 will be Patented Oct. 3, 1916.

thrown downwardly, some will strike the reflecting surface 11 and bereflected outwardly and downwardly. The reflecting" surfaces 10 and 11may be made with ribs or corrugations, if so desired. It is onlyessential to my invention thatthe reflecting surfaces be of a charactersuch that light will be reflected therefrom away from the source,upwardly by one 'surface,'and away from the source of light anddownwardly-by the other surface.

It will be noted that my reflector provides means for direct lighting ofthe space below and to the sides of the lamp, and that it also providesindirect lightingby reflection, and direct passage of the lightupwardly, and outwardly against the ceiling and walls of the room. -Bymeans of thedirect lighting no shadow is cast beneath the fixture whichis a serious objection in the case of indirect lighting systems whereina fixture is used witha reflector disposed below the'source of light.The indirect light produces -diffused and uniformly distributed lightabout the room, and the direct light illuminates the space, below the:source of light, thereby securing a uniform light distribution and ahigh efliciency.

What I claim is: c

A fixture, comprising a lamp support, a reflector comprisin a shallowmember. having an-aperture su stanti'ally at its center,

a lamp secured to said support and disposed with its light emittingelement substantially at the center of said aperture, said reflectorprovided with oppositely disposed dished surfaces diverging from thecenter for reflecting light away from said lamp in oppo- 5 sitedirections, said surfaces being of relatively small curvature ofrelativel great lateral extent and offering substantlally noobstruction-to the direct'rays of light having a small angle to thehorizontal plane passing through said light emitting element. In WitnessthatI claim the foregoing I have hereunto subscribed my name this 20thday of August, 1915.

OLAF S. STROM.

